Justin's dad is a famous writer. He travels a lot around the world in search of interesting stories, collects ancient legends and writes fairy tales. So this time he went to Brovania and took his son Justin and daughter Marissa with him. They decided to find a mysterious ancient manuscript called "The Legend of the Deep Forest." Nobody knows what the legend says. The manuscript was lost five hundred years ago. Justin and Marissa really wanted to help their father. But they did not find the manuscript, but they themselves were lost. We got lost in the dense forests of Brovania, where strange creatures live: millions of squeaky mice, a dog with silver fur and harsh Vikings from the distant past...